GPT-5.2 vs GPT-5.6 Sol
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
GPT-5.6 Sol by OpenAI wins on 4 of 6 benchmarks against GPT-5.2 by OpenAI, which leads on 2. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.
Category-by-Category Breakdown
Reasoning: In reasoning, GPT-5.6 Sol scores 91.9% on GPQA Diamond compared to GPT-5.2's 87.9%, while GPT-5.6 Sol scores 76.7% on τ²-Bench Airline compared to GPT-5.2's 73.3%.
Context: In context, GPT-5.6 Sol scores 1.1M on Context Length compared to GPT-5.2's 400K.
Pricing Comparison
GPT-5.2 costs $1.8/1M input tokens and $14.0/1M output tokens, while GPT-5.6 Sol costs $2.0/1M input and $10.0/1M output. GPT-5.2 is the more affordable option for API usage.
Verdict
GPT-5.2 leads across the board in affordability, making it the stronger overall choice in this comparison.
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GPT-5.2 vs GPT-5.6 Sol — FAQ
Which is better, GPT-5.2 or GPT-5.6 Sol?
GPT-5.6 Sol wins on more benchmarks overall (4 vs 2). However, the best choice depends on your specific needs — each model excels in different areas.
How does GPT-5.2 compare to GPT-5.6 Sol for coding?
SWE-bench Verified data is not available for both models. Check the detailed comparison charts above for other coding-related metrics.
Is GPT-5.2 cheaper than GPT-5.6 Sol?
Yes, GPT-5.2 is cheaper. GPT-5.2 costs $1.8/1M input and $14.0/1M output tokens. GPT-5.6 Sol costs $2.0/1M input and $10.0/1M output tokens.
Which is faster, GPT-5.2 or GPT-5.6 Sol?
Output speed data is not available for both models. Check the speed section of the comparison above for available performance data.
What benchmarks does the GPT-5.2 vs GPT-5.6 Sol comparison cover?
This comparison covers 6 benchmarks including GPQA Diamond, Input Cost, Output Cost, Context Length, Cached Input Cost, τ²-Bench Airline. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.